INFLATION refers to a PERSISTENT INCREASE in the GENERAL PRICE LEVEL over a period of time
DEFLATION refers to a PERSISTENT DECREASE in the GENERAL PRICE LEVEL over a period of time
The CONSUMER PRICE INDEX (CPI) is a weighted price index that COMPARES THE TOTAL COST OF A BASKET OF CONSUMER GOODS & SERVICES that supposedly represents the ‘typical household’ IN ONE YEAR, WITH THE COST OF THE SAME BASKET IN A CHOSEN BASE YEAR. Changes in the CPI are intended to show how the COST OF LIVING for the AVERAGE HOUSEHOLD has changed over time.
We can see from the spreadsheet above that the true basket contains hundreds of items, in this example we will only use three: Pizza, Baby formula, and MRT rides.
We will need to designate a particular year's basket value, as the base year to compare the values of other baskets. In this example, we have chosen the value of the 2009 basket.
We insert the prices of each good in the base year and the quantities (These are held constant)
The value of the basket is not only based on the prices but also on the QUANTITY of each item bought. This is because the quantity bought REFLECTS THE LEVEL OF IMPORTANCE of each good IN TERM OF ITS IMPACT ON THE COST OF LIVING FOR THE AVERAGE HOUSEHOLD. Therefore any price changes in the most frequently bought items are given a higher weighting than price changes in less frequently bought items.
For example, baby formula is only purchased by households with young children, therefore any price changes in this item will only be given a small weighting whereas MRT rides are much more frequently bought, and therefore any price changes in this item will receive a higher weighting as it will more likely impact the cost of living of an average household.
Now we complete the table using the prices of each item in each year, using the same quantities.
Using the formula below we work out the CPI values for each year.
'CPI = (Value of basket in specific year / Value of basket in the base year) x 100'
Now that the CPI is constructed we can work out the Inflation or deflation rates as the % change in the CPI values. A POSITIVE % CHANGE indicates INFLATION, whilst a NEGATIVE % CHANGE indicates DEFLATION.
An apple in 2023 costs 5 cents, yet it only cost 1 cent 20 years ago lah!
Yes that's because of inflation lah!
Are you sure? That's a 500% rise in the price, seems excessive
Let's see, using 2003 as the base year, 2023 CPI is 390, Your right that's only 290%..... call the manager GREEDFLATON!!!!!
EXAMPLE # 1:-
If Good X costs 50$ in the base year 100 (Year A), how much should the same good cost (in $ terms) in the basket with an index of 120 (Year B)?
That's easy, 100 to 120 is a rise of 20% so it should cost...
120/100 * $50 = $60 (Price * 1.2)
EXAMPLE # 2:-
If Good X costs 50$ in the year with an index value of 110 (Year A), how much should the same good cost in the basket with an index of 120 (Year B)?
That's a bit trickier 110 to 120 is (120/110) = 1.09, so 9% more.
(120/110) * $50 = $54.54 (Price * 1.09)
So the formula for adjusting prices using the CPI is:
4.8.3: CAUSES OF INFLATION
4.8.3: CAUSES OF DEFLATION
COST-PUSH INFLATION is CAUSED BY HIGHER COSTS OF PRODUCTION, which makes firms raise their prices in order to maintain their profit margins. For example, in the diagram below, higher raw material costs, increased wages and soaring rents shift the aggregate supply (total supply) curve for the economy to the left from AS1 to AS2, forcing up the general price level from P1 to Pi and reducing national income from Y1 to Yi.
DEFLATION can be CAUSED BY LOWER LEVELS OF AGGREGATE DEMAND in the economy, driving down the general price level of goods and services due to excess capacity in the economy. This causes what is known as 'malign/bad deflation', as not only have prices fallen but also output while unemployment rises.
DEMAND-PULL INFLATION is CAUSED BY HIGHER LEVELS OF AGGREGATE DEMAND (total demand in the economy) driving up the general price level of goods and services. For example, during an economic boom, household consumption of goods and services increases due to higher GDP per capita and higher levels of employment. In the diagram below, this is shown by a rightward shift of the aggregate demand curve from A.D1 to AD2, raising national income from Y1 to Yi and forcing up the general price le,vel from P1 to P2•
DEFLATION can be caused by HIGHER LEVELS OF AGGREGATE SUPPLY, increasing the productive capacity of the economy. This drives down the general price level of goods and services while increasing national income and employment, hence this type of deflation is often termed 'Benign/Good-deflation'.
Take on the role of each of the 9 stakeholders listed below and write nine 'first person' sentences/paragraphs explaining how inflation impacts you:
For each sentence start like this "As a NAME OF STAKEHOLDER inflation negatively/positively impacts me because..."
UNCERTAINTY - about the purchasing power of money in the present and in the future makes planning and decision-making for households, firms, and governments, with many consequences as outlined below.
CONSUMERS' PURCHASING POWER FALLS - The purchasing power of consumers goes down when there is inflation - there is a fall in their real income because money is worth less than before.
CREATES TIME ('SHOE-LEATHER') COSTS for CONSUMERS - Inflation causes fluctuations in price levels, so customers spend more time searching for the best deals. This might be done by physically visiting different firms to find the cheapest supplier or searching online. Shoe leather costs represent an opportunity cost for customers.
CREATES EXTRA ('MENU') COSTS FOR FIRMS - Inflation impacts the prices charged by firms. Catalogs, price lists, and menus have to be updated regularly and this is costly to businesses. Of course, workers also have to be paid for the time they take to reprice goods and services.
INVESTMENT UNCERTAINTY - Inflation also causes business uncertainty. The combination of uncertainty and the lower expected real rates of return on investment (due to higher costs of production) leads to lower the amount of planned investment in the economy.
THE REAL VALUE OF SAVINGS FALLS This is because the money they have saved is worth less than before. For example, if interest rates average 2 percent for savings accounts in a country but its inflation rate is 3 percent, then the real interest rate on savings is actually - I percent. Hence, inflation can act as a disincentive to save. ln turn, this leads to fewer funds being made available for investment in the economy.
LENDERS (ALSO CALLED 'CREDITOR') LOSE OUT This is because when they work out the interest rate to charge the borrowers they include an 'EXPECTED INFLATION RATE', to determine their gains. For example, if the lender wants an 8% return on their money and they expect inflation to be 2% then they will charge the borrower 10% interest, however, if inflation is higher than expected, say 5% then their gain will only be 5%.
BORROWERS (ALSO KNOWN AS 'DEBTORS') GAIN - By contrast, borrowers tend to gain from inflation as the money they need to repay is worth less than when they initially borrowed it - in other words, the real value of their debt declines due to inflation. For example, if a borrower takes out a mortgage at 5 percent interest but inflation is 3.5 percent, this means the real interest rate is only 1.5 percent.
FIXED INCOME EARNERS LOSE OUT - During periods of inflation, fixed income earners (such as pensioners and salaried workers whose pay doesn't change with their level of output) see a fall in their real income. Thus, they are worse off than before as the purchasing power of their fixed income declines with higher prices. Even if employees receive a pay rise, the rate of inflation reduces its real value. For example, if workers get a 4 percent pay rise but inflation is 3 percent, then the real pay increase is only I percent.
EMPLOYERS WILL FACE HIGHER WAGE DEMANDS - Workers are likely to demand a pay rise during times of inflation in order to maintain their level of real income. As a result, labour costs of production rise and, other things being equal, profits margins fall. Those in highly skilled professions such as surgeons, doctors, pilots and barristers are in a strong bargaining position because their skills are in short supply and high demand. This can create a wage-price spiral whereby demand for higher wages to keep in line with inflation simply causes more inflation. Inflation also harms employers located in expensive areas.
EXPORTERS ARE LOSERS as the international competitiveness of a country tends to fall when there is domestic inflation. In the long run, higher prices make exporters less price competitive, thus causing a drop in profits. This leads to a fall in export earnings, lower economic growth and higher unemployment.
USERS OF ESSENTIAL IMPORTS- If supply-side issues of essential imports such as petroleum and food products cause prices to rise then domestic costs of production will rise causing domestic inflation. Hence, inflation can cause problems for countries without many natural resources.
As deflation usually occurs due to a fall in aggregate demand in the economy, this causes a fall in the demand for labour - that is, deflation causes job losses in the economy.
During periods of deflation, consumers spend less so firms tend to have lower sales revenues and profits. This makes it more difficult for firms to repay their costs and liabilities (money owed to others, such as outstanding loans and mortgages). Thus, deflation can cause a large number of bankruptcies in the economy.
As the profits of firms fall, the value of their shares also falls during times of deflation. This means that dividends and the capital returns on holding shares fall, thus reducing the wealth of shareholders.
The real cost of debts (borrowing) increases when there is deflation. This is because real interest rates rise when the price level falls. For example, if interest rates average 1.0% but the inflation rate is -1.5%, then the real interest rate has risen to 2.5%, this is because the purchasing power of the repayments has now risen. Thus, with deflation and the subsequent rising real value of debts, both consumer and business confidence levels fall, further adding to the economic problems in the country.
With more bankruptcies, unemployment and lower levels of economic activity, tax revenues fall while the amount of government spending rises (due to the economic decline associated with malign inflation). This creates a budget deficit for the government, meaning that it needs to borrow money even though the real cost of borrowing rises with deflation.
Deflation usually causes a fall in consumer confidence levels, as consumers fear that things will get worse for the economy. Thus, they may postpone their spending, especially on consumer durable goods such as cars and furniture, as they expect prices to fall even further in the future or wait until the economy improves. This clearly does not help the economy to recover, thereby causing a downward deflationary spiral.
IF DEMAND PULL INFLATION then policies to DECREASE DEMAND are used, causing the AD curve to SHIFT TO THE LEFT.
CONTRACTIONARY MONETARY POLICY: RAISING THE INTEREST RATE, so people save more instead of spending lowering consumption spending (C). The higher rates will discourage businesses (I) and households from borrowing money to spend on goods & services, hence lowering demand and the price level.
CONTRACTIONARY FISCAL POLICY: Lowering government spending (G) and raising taxes, will reduce the disposable income that households and businesses have to spend, hence lowering demand and the price level
IF COST PULL INFLATION then policies aim to increase the productivity of the economy causing the AS curve to SHIFT TO THE RIGHT leading to lower prices in the future.
IF IN A RECESSION/DEFLATIONARY SPIRAL then policies to INCREASE DEMAND are used, causing the AD curve to SHIFT TO THE RIGHT.
EXPANSIONARY MONETARY POLICY: LOWERING THE INTEREST RATE, so households and firms save less and spend more. The lower rates will also encourage businesses and households to borrow more money to spend on goods & services, hence increasing demand and the price level.
EXPANSIONARY FISCAL POLICY: Raising government spending and lowering taxes, will increase the disposable income that households and businesses have to spend, hence increasing demand and the price level
Define ‘consumer prices index’. (2)
Discuss whether deflation always harms an economy. (8)
Explain how a country’s inflation rate is measured. (4)
Discuss whether an increase in taxes will reduce inflation. (8)
Discuss whether an increase in taxes will cause deflation. (8)
Analyse how an increase in tourism can increase a country’s inflation rate. (6)
CREATE A 2-SLIDE GOOGLE SLIDE DOC.
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THE FIRST SLIDE SHOULD BE THE QUESTION
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